All-in-one wireless device: a multifunction Wireless Mini QWERTY Keyboard with IR remote and fly mouse, plus a USB interface receiver. It generally works on smart TVs, but compatibility varies by OS, especially with Samsung TVs. If in doubt, try a common wired keyboard and mouse on your TV first; if they work, this combo should too. Built-in rechargeable battery: lithium-ion and energy-efficient. Charges via USB. Suitable for typing emails, navigating menus, and light gaming. Compatible with HTPC and Android TV Box running Android systems. Innovative compact design: elegant and versatile. Not compatible with Amazon Fire TV Stick. Suitable for PC, Pad, Android TV Box, Google TV Box, Xbox 360, PS3, HTPC, IPTV. Easy setup and programming: in any circumstance it works well. Steps: 1) Press and hold SET for more than 4 seconds; the yellow LED blinks once and stays on. 2) Align the remote IR light with the original remote IR light (distance under 7 cm). 3) Press the key to be programmed on the new remote; the LED will flash twice and stay on, meaning the key is ready for programming. 4) Press the corresponding key on the original remote; its LED will flash three times and stay on, indicating programming is complete. Practical use scenarios: type emails and search on smart TVs; navigate media apps on Android TV Box or HTPC; play casual games using the fly mouse.